LCSR Programming Model

Interrupt Level Register 1 (bits 0-7)

 

ADR/SIZ

 

 

 

$FFF40078 (8 bits [6 used] of 32)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIT

7

6

 

5

 

4

3

2

 

1

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NAME

 

TICK2 LEVEL

 

 

 

TICK1 LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPER

 

 

 

R/W

 

 

 

 

R/W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

 

 

0 PSL

 

 

 

 

0 PSL

 

 

 

 

 

 

 

 

 

 

 

 

 

This register is used to define the level of the tick timer 1 interrupt and the

 

 

tick timer 2 interrupt.

 

 

 

 

 

 

 

 

 

TICK1 LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These bits define the level of the tick timer 1 interrupt.

 

 

TICK2 LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

These bits define the level of the tick timer 2 interrupt.

Interrupt Level Register 2 (bits 24-31)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ADR/SIZ

 

 

 

$FFF4007C (8 bits [6 used] of 32)

 

 

BIT

31

30

 

29

 

28

27

26

 

25

 

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NAME

 

 

VIA LEVEL

 

 

 

DMA LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPER

 

 

 

R/W

 

 

 

 

R/W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

 

 

0 PSL

 

 

 

 

0 PSL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This register is used to define the level of the DMA controller interrupt and the VMEbus acknowledge interrupt.

DMA LEVEL These bits define the level of the DMA controller interrupt.

VIA LEVEL These bits define the level of the VMEbus interrupter acknowledge interrupt.

2

http://www.motorola.com/computer/literature

2-89

Page 179
Image 179
Motorola MVME1X7P manual These bits define the level of the tick timer 1 interrupt, Interrupt Level Register 2 bits